TL1431-EP Datasheet | Texas Instruments

Features - 1 0.4% Initial Voltage Tolerance - 0.2-Ω Typical Output Impedance - Fast Turnon: 500 ns - Sink Current Capability: 1 to 100 m A - Low Reference Current (REF) - Adjustable Output Voltage: VI(ref) to 36 V - Supports Defense, Aerospace, and Medical Applications - Controlled Baseline - One Assembly and Test Site - One Fabrication Site - Available in Military (- 55°C to 125°C) Temperature Range - Extended Product Life Cycle - Extended Product-Change Notification - Product Traceability 2 Applications - Shunt Regulators - Temperature-pensated parators - PWM Converter Reference - Photodiode Reference Drivers - Precision Current Limiters - Precision Current Sink 3 Description The TL1431-EP device is a precision-programmable reference with specified thermal stability over the military temperature range. The output voltage can be set to any value from VI(ref) (approximately 2.5 V) to 36 V with two external resistors (see Figure 21). This device has a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener diodes and other types of references in applications such as onboard regulation, adjustable power supplies, and switching power supplies. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SOIC (8) 3.91 mm × 4.90 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. 4 Simplified Schematic 1 CATHODE 800Ω 800Ω 8 REF 20 p F Symbol REF 2.4...